B&M transmission deep pan

Dark Knight GT · Sep 5, 2005

I'm going to be flushing my transmission soon to switch to Amsoil universal synthetic transmission fluid and was looking for a new oil pan. I was wondering if anyone is using the B&M transmission deep pan on their 4r70w automatics ? If so, do you have any problems with it, such as clearance or leaking ?

Here is a link to it at Summit Racing:http://store.summitracing.com/defau...earchinresults=false&N=0&target=egnsearch.asp

It stipulates the pan will increase fluid capcity up to 3qts, and has drain plug for easy drains. I'm thinking it would be a good idea in the long run for a high performing 4r70w automatic like mine. What do you guys think ?

Kilgore Trout · Sep 5, 2005

Ford Racing Parts has one that adds two quarts to stock capacity and has a drain plug:

Dark Knight GT · Sep 5, 2005

Where did you find that at my clever friend ? Looks sweet.

streetstang03 · Sep 5, 2005

[size=-3]theres a link in this post. click the word "one"[/size]

Dark Knight GT · Sep 5, 2005

Thanks Streetstang03, didn't see that little link in the word "one".

The FRPP pan above is 195 dollars. At least accordingly to that link. It also does not come with a new pan gasket. The one from B&M I gave the link for above is only 164.95 and it does come with a new gasket. Not to mention the the B&M increases fluid capacity by 3qts, compared to the FRPP one that only increases it by 2qts.

Kilgore Trout · Sep 5, 2005

Ford Racing prices are MSRP. RandyStinchcomb can get you one cheaper I am sure... It is up to you though but if it were me I would go with FRPP.

Robuilt · Sep 5, 2005

Mac has one. $125... looks good

propellerhead · Sep 5, 2005

What benefit do you get from increasing the volume of the fluid?

Dark Knight GT · Sep 5, 2005

ImRobuilt, I'm not putting anything else by "MAC" performance on my car. Sure, they make some parts that are alright, but they also make a lot of crap parts as well. Not to mention their poor customer service makes me want to puke. I'm not knocking your post, just stating how I feel about Mac performance.

I'll see what price Randy Stinchcomb can get one of those pans for. I know Performance Automatic makes a deep transmission pan, but I don't know what all comes with it and how much it increases fluid capacity.

Kilgore Trout · Sep 5, 2005

propellerhead said:
What benefit do you get from increasing the volume of the fluid?

Increased cooling, increased fluid life, increased transmission life.

Dark Knight GT · Sep 5, 2005

propellerhead said:
What benefit do you get from increasing the volume of the fluid?

By increasing the fluid capacity, you increase internal cooling capabilities for the transmission. That, and you also have more fluid "on hand" sort of to speak, which reduces the chances of a clutch assembly being starved of sufficient lubrication, which can sometimes occur.

propellerhead · Sep 5, 2005

I don't get it.

I assume these pans add 2-3 quarts but keeping the fluid level the same. Meaning, the extra volume is added to the bottom of the pan. The fill level stays the same. So how would 3 quarts on the bottom help prevent the transmission from being starved of fluid? Even with the added volume, if you're a quart low, you're still a quart low, aren't you? Wouldn't the gears be starved of fluid if you are below the proper fill line?

Also, I don't see how more fluid will mean longer life of the fluid. If temperature kills the fluid, then wouldn't 10 quarts of fluid break down at the same rate as 5 quarts?

Plus, wouldn't having more fluid also mean it will take longer to cool down?

I'm not trying to be an ass here. Just trying to learn and understand the principle behind the larger capacity pans.

Kilgore Trout · Sep 5, 2005

A larger volume of fluid has a larger thermal mass and is able to absorb more heat before breaking down.

propellerhead · Sep 5, 2005

Kilgore Trout said:
A larger volume of fluid has a larger thermal mass and is able to absorb more heat before breaking down.

Ok, I can understand that. It would be easy to heat up a tablespoon of water with a match but you can't quite heat up a bathtub full of water with that same match. But, I still can't imagine how an additional 3 quarts of transmission fluid would really make a difference. There is so much heat generated in the transmission. I don't know if it will even make a difference.

I'm not an expert at fluids so I can't really argue. Just speculating.

Kilgore Trout · Sep 5, 2005

Well, the FRPP pan also has cooling fins on it and a drain plug so it is more that just increased capacity.

Plus it has those cool FRPP graphics. That alone is worth it

Dark Knight GT · Sep 5, 2005

propellerhead said:
I don't get it.

I'm sure there are lots of things you don't get. Much like your g/f whenever she's laying on her stomach and naked on the bed and you tell her, "I don't get it", I'm going to try to be like her in this situation and guide you through the process.

I assume these pans add 2-3 quarts but keeping the fluid level the same. Meaning, the extra volume is added to the bottom of the pan. The fill level stays the same. So how would 3 quarts on the bottom help prevent the transmission from being starved of fluid? Even with the added volume, if you're a quart low, you're still a quart low, aren't you? Wouldn't the gears be starved of fluid if you are below the proper fill line?

When people do aftermarket modifcations to raise line pressure, such as custom computer programming to increase shift speed, there are points in times when the transmission absorbs just about all the fluid in its lines, and its during times like this if you suddenly change either acceleration or de-acceleration that certain clutch assemblies can recieve insufficient line pressure, and this leads to added wear. I believe Jerry Wroblewski covered this once in one of his transmission articles.

Also, I don't see how more fluid will mean longer life of the fluid. If temperature kills the fluid, then wouldn't 10 quarts of fluid break down at the same rate as 5 quarts?

Not really. The more fluid you have, the more heat it can absorb, and thus reduce internal temperatures. Thus, the fluid breaks down at a slower rate.

Plus, wouldn't having more fluid also mean it will take longer to cool down?

In the sense of there being more fluid to cool, yes. At the same time though, the more fluid, the lower the temperatures will be to begin with.

Basically put, sometimes its better to be more lubed than insufficiently lubed.

Dark Knight GT · Sep 5, 2005

Little update on the pricing. I found the FRPP pan at GEF racing for a bit cheaper:

http://www.gefracing.com/Merchant2/...=G&Product_Code=M71954R&Category_Code=46TRANS

streetstang03 · Sep 5, 2005

good find man. im trying to find cheaper prices now too. I didnt see any on eBay for the 4R70W, just C4.

Dark Knight GT · Sep 5, 2005

I found a company named TCI that makes an aftermarket pan, but I don't know what kind of quality they are. I've heard the name TCI before, just never used them before.

Dark Knight GT · Sep 6, 2005

Well, I did more searching, and I can't seem to find the FRPP transmission pan for sale any place else. That, and so far, the B&M is the only one I can find that increases fill capacity by 3 qts. Due to this last fact, and price, I'm thinking about giong with the B&M unit. I honestly don't care about what the pan looks like, as it is going to be on the bottom of the car.

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